Symptom Chart: Climate Control - Dual Automatic Temperature Control (DATC)

WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Symptom Chart

Condition	Possible Sources	Actions
A module does not communicate with the diagnostic scan tool	Fuse(s) Wiring, terminals or connectors FCIM	REFER to: Communications Network .
Unable To Duplicate The Customer Concern And No Diagnostic Trouble Codes (DTCs) Present	Refer to Pinpoint Test	GO to Pinpoint Test C
HVAC functions are inoperative/do not operate correctly from touchscreen only	Communication network FCIM APIM	Refer to the appropriate article for the procedure.
Reduced outlet airflow	Plugged cabin air filter	INSPECT the cabin air filter. REFER to: Cabin Air Filter . If OK, DIAGNOSE for low refrigerant charge, A/C always commanded on or blower motor not operating correctly.
	Improper refrigerant level	CARRY OUT the refrigerant system tests. REFER to: Refrigerant System Tests - 2.7L EcoBoost (238kW/324PS) . REFER to: Refrigerant System Tests - 3.5L EcoBoost (272kW/370PS) . REFER to: Refrigerant System Tests - 3.5L Duratec (209kW/284PS) . REFER to: Refrigerant System Tests - 5.0L 32V Ti-VCT . If refrigerant charge is OK, GO to Pinpoint Test H
	Blower motor	GO to Pinpoint Test L
The air inlet door is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test D
Incorrect or erratic direction of airflow from outlets	Refer to Pinpoint Test	GO to Pinpoint Test E
Insufficient, erratic or no heat	Refer to Pinpoint Test	GO to Pinpoint Test F
Insufficient heat in Auto Start-Stop mode only	Refer to Pinpoint Test	GO to Pinpoint Test S
The A/C is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test G
The A/C is always on - A/C mode always commanded ON	Refer to Pinpoint Test	GO to Pinpoint Test H
Temperature control is inoperative/does not operate correctly - driver side	Refer to Pinpoint Test	GO to Pinpoint Test I
Temperature control is inoperative/does not operate correctly - passenger side	Refer to Pinpoint Test	GO to Pinpoint Test J
The blower motor is inoperative	Refer to Pinpoint Test	GO to Pinpoint Test K
The blower motor does not operate correctly	Refer to Pinpoint Test	GO to Pinpoint Test L
Insufficient A/C cooling	Improper refrigerant level	CARRY OUT the refrigerant system tests. REFER to: Refrigerant System Tests - 2.7L EcoBoost (238kW/324PS) . REFER to: Refrigerant System Tests - 3.5L EcoBoost (272kW/370PS) . REFER to: Refrigerant System Tests - 3.5L Duratec (209kW/284PS) . REFER to: Refrigerant System Tests - 5.0L 32V Ti-VCT . If OK, DIAGNOSE for a temperature door actuator not operating correctly.
Insufficient A/C cooling	Temperature door actuator	For inadequate temperature out of the driver side, GO to Pinpoint Test I For inadequate temperature out of the passenger side, GO to Pinpoint Test J
A/C pressure relief valve discharging	A/C pressure relief valve	CHECK the high side system pressure. REFER to: Specifications . If the pressure is below the A/C pressure relief valve open pressure, INSTALL a new A/C Compressor. REFER to: Air Conditioning (A/C) Compressor - 2.7L EcoBoost (238kW/324PS) . REFER to: Air Conditioning (A/C) Compressor - 3.5L EcoBoost (272kW/370PS) . REFER to: Air Conditioning (A/C) Compressor - 3.5L Duratec (209kW/284PS) . REFER to: Air Conditioning (A/C) Compressor - 5.0L 32V Ti-VCT .
A/C pressure relief valve discharging	High system pressure	CHECK the high side system pressure. REFER to: Specifications . If the system pressure is above the A/C pressure relief valve open pressure, REPAIR the A/C system for a restriction.
Climate control does not operate only when remote start is used	IPC information display settings Non-Ford approved remote start system installed	VERIFY Remote Start - Message Center Set To Auto, or Remote Start - Message Center Set To Last User Settings. REFER to: Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) - System Operation and Component Description . VERIFY module communications network operation. DIAGNOSE Diagnostic Trouble Codes (DTCs) if present.